Update ci

Signed-off-by: Yadunund <[email protected]>

.github/workflows/nightly.yaml

@@ -1,5 +1,5 @@
 name: nightly
-on: 
+on:
   push:
   pull_request:
   schedule:
@@ -9,16 +9,22 @@ jobs:
   build_and_test:
     name: Nightly build and test
     runs-on: ubuntu-20.04
+    container:
+      image: rostooling/setup-ros-docker:ubuntu-focal-latest
     steps:
       - name: deps
-        uses: ros-tooling/setup-ros@v0.2
+        uses: ros-tooling/setup-ros@v0.3
         with:
           required-ros-distributions: galactic
+      - name: install_clang
+        run: sudo apt update && sudo apt install -y clang clang-tools lld
       - uses: actions/checkout@v2
       - name: build_and_test
         uses: ros-tooling/[email protected]
         env:
           QT_QPA_PLATFORM: offscreen
+          CC: clang
+          CXX: clang++
         with:
           target-ros2-distro: galactic
           # build all packages listed in the meta package
@@ -59,7 +65,7 @@ jobs:
           colcon-defaults: |
             {
               "build": {
-                "mixin": ["coverage-gcc"]
+                "mixin": ["coverage-gcc", "lld"]
               }
             }
           colcon-mixin-repository: https://raw.githubusercontent.com/colcon/colcon-mixin-repository/master/index.yaml